1359731 has 2 divisors, whose sum is σ = 1359732. Its totient is φ = 1359730.

The previous prime is 1359727. The next prime is 1359733. The reversal of 1359731 is 1379531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1359731 - 2² = 1359727 is a prime.

It is a super-2 number, since 2×1359731² = 3697736784722, which contains 22 as substring.

Together with 1359733, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1359694 and 1359703.

It is not a weakly prime, because it can be changed into another prime (1359733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 679865 + 679866.

It is an arithmetic number, because the mean of its divisors is an integer number (679866).

2^1359731 is an apocalyptic number.

1359731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1359731 is an equidigital number, since it uses as much as digits as its factorization.

1359731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2835, while the sum is 29.

The square root of 1359731 is about 1166.0750404670. The cubic root of 1359731 is about 110.7858599080.

The spelling of 1359731 in words is "one million, three hundred fifty-nine thousand, seven hundred thirty-one".